The patch titled powerpc: implement pte_special for 64K pages has been added to the -mm tree. Its filename is powerpc-implement-pte_special-update.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: powerpc: implement pte_special for 64K pages From: Nick Piggin <npiggin@xxxxxxx> Ben has now freed up a pte bit on 64k pages. Use it for special pte bit. Signed-off-by: Nick Piggin <npiggin@xxxxxxx> Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> Cc: Paul Mackerras <paulus@xxxxxxxxx> Cc: Hugh Dickins <hugh@xxxxxxxxxxx> Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxx> CcPeter Zijlstra <a.p.zijlstra@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/asm-powerpc/pgtable-64k.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff -puN include/asm-powerpc/pgtable-64k.h~powerpc-implement-pte_special-update include/asm-powerpc/pgtable-64k.h --- a/include/asm-powerpc/pgtable-64k.h~powerpc-implement-pte_special-update +++ a/include/asm-powerpc/pgtable-64k.h @@ -70,11 +70,12 @@ static inline struct subpage_prot_table #define PGDIR_MASK (~(PGDIR_SIZE-1)) /* Additional PTE bits (don't change without checking asm in hash_low.S) */ +#define __HAVE_ARCH_PTE_SPECIAL +#define _PAGE_SPECIAL 0x00000400 /* software: special page */ #define _PAGE_HPTE_SUB 0x0ffff000 /* combo only: sub pages HPTE bits */ #define _PAGE_HPTE_SUB0 0x08000000 /* combo only: first sub page */ #define _PAGE_COMBO 0x10000000 /* this is a combo 4k page */ #define _PAGE_4K_PFN 0x20000000 /* PFN is for a single 4k page */ -#define _PAGE_SPECIAL 0x0 /* don't have enough room for this yet */ /* For 64K page, we don't have a separate _PAGE_HASHPTE bit. Instead, * we set that to be the whole sub-bits mask. The C code will only _ Patches currently in -mm which might be from npiggin@xxxxxxx are origin.patch linux-next.patch mspec-convert-nopfn-to-fault.patch mspec-convert-nopfn-to-fault-fix.patch mm-remove-nopfn.patch mm-remove-nopfn-fix.patch mm-remove-double-indirection-on-tlb-parameter-to-free_pgd_range-co.patch hugetlb-guarantee-that-cow-faults-for-a-process-that-called-mmapmap_private-on-hugetlbfs-will-succeed-build-fix.patch vma-page-offset-has-no-callees-drop-it.patch hugetlb-factor-out-prep_new_huge_page.patch hugetlb-modular-state-for-hugetlb-page-size.patch hugetlb-modular-state-for-hugetlb-page-size-checkpatch-fixes.patch hugetlb-multiple-hstates-for-multiple-page-sizes.patch hugetlb-multiple-hstates-for-multiple-page-sizes-checkpatch-fixes.patch hugetlbfs-per-mount-huge-page-sizes.patch hugetlb-new-sysfs-interface.patch hugetlb-new-sysfs-interface-fix-2.patch hugetlb-abstract-numa-round-robin-selection.patch mm-introduce-non-panic-alloc_bootmem.patch mm-export-prep_compound_page-to-mm.patch hugetlb-support-larger-than-max_order.patch hugetlb-support-boot-allocate-different-sizes.patch hugetlb-printk-cleanup.patch hugetlb-introduce-pud_huge.patch hugetlb-introduce-pud_huge-s390-fix.patch x86-support-gb-hugepages-on-64-bit.patch x86-add-hugepagesz-option-on-64-bit.patch hugetlb-override-default-huge-page-size.patch hugetlb-override-default-huge-page-size-ia64-build.patch hugetlb-allow-arch-overried-hugepage-allocation.patch powerpc-function-to-allocate-gigantic-hugepages.patch powerpc-scan-device-tree-for-gigantic-pages.patch powerpc-define-support-for-16g-hugepages.patch fs-check-for-statfs-overflow.patch powerpc-support-multiple-hugepage-sizes.patch mmu-notifiers-add-list_del_init_rcu.patch mmu-notifiers-add-mm_take_all_locks-operation.patch mmu-notifiers-add-mm_take_all_locks-operation-checkpatch-fixes.patch mmu-notifier-core.patch mmu-notifier-core-fix.patch mmu-notifier-core-fix-2.patch x86-implement-pte_special.patch x86-implement-pte_special-fix.patch mm-introduce-get_user_pages_fast.patch mm-introduce-get_user_pages_fast-fix.patch mm-introduce-get_user_pages_fast-checkpatch-fixes.patch x86-lockless-get_user_pages_fast.patch x86-lockless-get_user_pages_fast-checkpatch-fixes.patch x86-lockless-get_user_pages_fast-fix.patch x86-lockless-get_user_pages_fast-fix-2.patch x86-lockless-get_user_pages_fast-fix-2-fix-fix.patch x86-lockless-get_user_pages_fast-fix-warning.patch dio-use-get_user_pages_fast.patch splice-use-get_user_pages_fast.patch x86-support-1gb-hugepages-with-get_user_pages_lockless.patch mm-readahead-scan-lockless.patch radix-tree-add-gang_lookup_slot-gang_lookup_slot_tag.patch mm-speculative-page-references.patch mm-speculative-page-references-fix.patch mm-lockless-pagecache.patch mm-spinlock-tree_lock.patch powerpc-implement-pte_special.patch powerpc-implement-pte_special-update.patch vmscan-move-isolate_lru_page-to-vmscanc.patch vmscan-move-isolate_lru_page-to-vmscanc-fix.patch vmscan-split-lru-lists-into-anon-file-sets-splitlru-bdi_cap_swap_backed.patch mlock-mlocked-pages-are-unevictable.patch mlock-mlocked-pages-are-unevictable-fix.patch mlock-mlocked-pages-are-unevictable-fix-fix.patch mlock-mlocked-pages-are-unevictable-fix-3.patch mlock-mlocked-pages-are-unevictable-fix-fix-munlock-page-table-walk-now-requires-mm.patch mmap-handle-mlocked-pages-during-map-remap-unmap.patch fix-double-unlock_page-in-2626-rc5-mm3-kernel-bug-at-mm-filemapc-575.patch mmap-handle-mlocked-pages-during-map-remap-unmap-cleanup.patch vmstat-mlocked-pages-statistics.patch vmstat-mlocked-pages-statistics-fix-incorrect-mlocked-field-of-proc-meminfo.patch reiser4.patch likeliness-accounting-change-and-cleanup.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html